Description: The ‘promise rejection’ is a state that a promise can reach in the context of asynchronous programming, particularly in JavaScript and other programming languages that support promises. A promise is an object that represents the eventual completion or failure of an asynchronous operation and its resulting value. When a promise is rejected, it means that the asynchronous operation has failed, and an error has occurred. This rejection state allows developers to handle errors more effectively, using methods like ‘.catch()’ to capture and manage the exception. The rejection of a promise not only indicates that something went wrong but also provides a mechanism to propagate the error through the promise chain, facilitating debugging and error handling in complex applications. Handling rejected promises is crucial to ensure that responses to asynchronous operations are managed properly, preventing applications from crashing or behaving unexpectedly. In summary, promise rejection is a fundamental concept in modern programming that allows developers to manage errors efficiently and maintain the stability of their applications.
